Results 1 to 10 of about 2,243,512 (284)

A New Conformal Map for Polynomial Chaos Applied to Direction-of-Arrival Estimation via UCA Root-MUSIC [PDF]

open access: yesSensors, 2022
The effects of random array deformations on Direction-of-Arrival (DOA) estimation with root-Multiple Signal Classification for uniform circular arrays (UCA root-MUSIC) are characterized by a conformally mapped generalized Polynomial Chaos (gPC) algorithm.
Seppe Van Brandt   +3 more
doaj   +2 more sources

Harmonicity of horizontally conformal maps and spectrum of the Laplacian [PDF]

open access: goldInternational Journal of Mathematics and Mathematical Sciences, 2002
We discuss the harmonicity of horizontally conformal maps and their relations with the spectrum of the Laplacian. We prove that if Φ:M→N is a horizontally conformal map such that the tension field is divergence free, then Φ is harmonic. Furthermore, if N
Gabjin Yun
doaj   +2 more sources

Noise effects on Padé approximants and conformal maps* [PDF]

open access: greenJournal of Physics A: Mathematical and Theoretical, 2022
We analyze the properties of Padé and conformal map approximants for functions with branch points, in the situation where the expansion coefficients are only known with finite precision or are subject to noise.
Ovidiu Costin   +2 more
openalex   +3 more sources

Celestial diamonds: conformal multiplets in celestial CFT [PDF]

open access: yesJournal of High Energy Physics, 2021
We examine the structure of global conformal multiplets in 2D celestial CFT. For a 4D bulk theory containing massless particles of spin s = 0 1 2 1 3 2 2 $$ \left\{0,\frac{1}{2},1,\frac{3}{2},2\right\} $$ we classify and construct all SL(2,ℂ) primary ...
Sabrina Pasterski   +2 more
doaj   +2 more sources

The hypersurfaces with conformal normal Gauss map in Hn+1 and S1n+1 [PDF]

open access: diamondAnais da Academia Brasileira de Ciências, 2008
In this paper, we introduce the fourth fundamental forms for hypersurfaces in Hn+1 and space-like hypersurfaces in S1n+1, and discuss the conformality of the normal Gauss map of the hypersurfaces in Hn+1 and S1n+1.
Shuguo Shi
doaj   +2 more sources

Representation of conformal maps by rational functions [PDF]

open access: greenNumerische Mathematik, 2019
The traditional view in numerical conformal mapping is that once the boundary correspondence function has been found, the map and its inverse can be evaluated by contour integrals.
Abinand Gopal, Lloyd N. Trefethen
openalex   +3 more sources

Schwarz-Pick lemma for harmonic maps which are conformal at a point

open access: greenAnalysis & PDE, 2021
We obtain a sharp estimate on the norm of the differential of a harmonic map from the unit disc $\mathbb D$ in $\mathbb C$ to the unit ball $\mathbb B^n$ in $\mathbb R^n$, $n\ge 2$, at any point where the map is conformal.
Franc Forstnerič, David Kalaj
openalex   +2 more sources

Hexagons all the way down: grid cells as a conformal isometric map of space. [PDF]

open access: greenPLoS Comput Biol
Schøyen VS   +7 more
europepmc   +3 more sources

Approximately Conformal, Equivalent and Equidistant Map Projections [PDF]

open access: yesJournal of Geodesy and Geoinformation Science, 2022
If geodetic coordinates from an ellipsoid are included in the equations of a projection for mapping a sphere instead of geographical coordinates, the result will be a projection of the ellipsoid into a plane.
Miljenko LAPAINE,Nedjeljko FRANČULA
doaj   +1 more source

Quantum conformal symmetries for spacetimes in superposition [PDF]

open access: yesQuantum, 2022
Without a complete theory of quantum gravity, the question of how quantum fields and quantum particles behave in a superposition of spacetimes seems beyond the reach of theoretical and experimental investigations.
Viktoria Kabel   +3 more
semanticscholar   +1 more source

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